Canadian MDMA/PTSD (MP-4) Updates related to the Canadian MDMA/PTSD Study MP-4 can be found below: US MDMA/PTSD (Completed) Swiss MDMA/PTSD (Completed) Israeli MDMA/PTSD Jordanian MDMA/PTSD US MDMA/PTSD in Veterans of War Australian MDMA/PTSD US MDMA/PTSD Relapse Treatment